Chore board for husband

I feel terrible for writing this post but I know I can't be the only one. I am 12 weeks pregnant and still have a lot of fatigue. I work 12 hour shifts at a hospital and my husband only works about 9 hours per shift. Not every shift. Some shifts are only 5 hours. We do our own separate laundry. He doesn't do anything else around the house unless I ask. We are 21 and have had our own place for about 2 years and he hasn't lived with his parents in 3. So I don't understand why it's so hard for him to notice something needs to be done, and just do it without me asking. So I asked my sister for advice and she told me get a chore board. I don't want to treat him like a child but he needs lists with deadlines or else he won't do it unless I ask and then I have to ask 4 times before he does it. I get frustrated because we got a puppy and he doesn't have patience to deal with it. I'm afraid he'll be that way with our child. He will be babysitting while I work and I need to know he's responsible enough and I am just scared he isn't. How have you ladies dealt with this? Is there anything at all I can do to help him grow up before our child gets here?